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Lipids

45 questions found

Practice Questions

The phosphate group in phospholipids contributes mainly to

A. Energy storage

B. Hydrophilic property ✓

C. Ester bond formation

D. Fatty acid synthesis

The phosphate-containing head is polar and interacts with water.

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nmdcat.online BIO NMDCAT

Jun 27, 2026

A diglyceride differs from a triglyceride because it contains

A. One fatty acid

B. Two fatty acids ✓

C. Three phosphate groups

D. No glycerol

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nmdcat.online BIO NMDCAT

Jun 27, 2026

The hydrophilic portion of a phospholipid faces

A. Interior of membrane

B. Aqueous environment ✓

C. Fatty acid tails

D. Protein core only

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Acylglycerols are produced through the reaction between

A. Amino acids and fatty acids

B. Glycerol and fatty acids ✓

C. Glucose and fatty acids

D. Ribose and proteins

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nmdcat.online BIO NMDCAT

Jun 27, 2026

The ester linkage in lipids is formed between

A. Amino and carboxyl groups

B. Hydroxyl and carboxyl groups ✓

C. Phosphate and amino groups

D. Sulfur and oxygen

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Triglycerides primarily function as

A. Enzymes

B. Energy reserves ✓

C. Genetic material

D. Hormones

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Biological membranes remain flexible because phospholipids possess

A. Polar heads and nonpolar tails ✓

B. Three phosphate groups

C. Peptide chains

D. Cellulose fibers

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nmdcat.online BIO NMDCAT

Jun 27, 2026

One molecule of glycerol can combine with a maximum of

A. One fatty acid

B. Two fatty acids

C. Three fatty acids ✓

D. Four fatty acids

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nmdcat.online BIO NMDCAT

Jun 27, 2026

The phosphate-containing lipid among the following is

A. Wax

B. Phospholipid ✓

C. Triglyceride

D. Neutral fat

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Saturated fatty acids characteristically contain

A. One or more double bonds

B. No carbon-carbon double bonds ✓

C. Triple bonds

D. Phosphate groups

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Unsaturated fatty acids differ from saturated fatty acids by possessing

A. Additional glycerol

B. One or more double bonds ✓

C. Peptide bonds

D. Phosphate heads only

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Phospholipids contribute mainly to

A. Long-term energy storage

B. Membrane structure ✓

C. Hormone synthesis only

D. DNA replication

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Lipids generally exhibit high solubility in

A. Water

B. Organic solvents ✓

C. Blood plasma

D. Dilute acids

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Esterification of glycerol with fatty acids results in the formation of

A. Amino acids

B. Acylglycerols ✓

C. Polysaccharides

D. Nucleotides

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nmdcat.online BIO NMDCAT

Jun 27, 2026

The hydrophobic region of a phospholipid consists of

A. Phosphate group

B. Fatty acid tails ✓

C. Glycerol only

D. Protein chains

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nmdcat.online BIO NMDCAT

Jun 27, 2026

Energy stored in triglycerides exceeds carbohydrates because triglycerides contain

A. Less hydrogen

B. More hydrogen and less oxygen ✓

C. More nitrogen

D. More sulfur

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nmdcat.online BIO NMDCAT

Jun 27, 2026

The principal storage form of lipids in animals consists of

A. Phospholipids

B. Triglycerides ✓

C. Steroids

D. Glycolipids

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nmdcat.online BIO NMDCAT

Jun 27, 2026

During hydrolysis of a triglyceride, the products include

A. Three fatty acids and one glycerol ✓

B. Three glycerol molecules

C. One fatty acid and three glycerol molecules

D. Amino acids and glycerol

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nmdcat.online BIO NMDCAT

Jun 27, 2026

A phospholipid differs from a triglyceride because it contains

A. A phosphate group ✓

B. Two glycerol molecules

C. Three phosphate groups

D. A protein molecule

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nmdcat.online BIO NMDCAT

Jun 27, 2026

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Lipids

Practice Questions

The phosphate group in phospholipids contributes mainly to

A diglyceride differs from a triglyceride because it contains

The hydrophilic portion of a phospholipid faces

Acylglycerols are produced through the reaction between

The ester linkage in lipids is formed between

Triglycerides primarily function as

Biological membranes remain flexible because phospholipids possess

One molecule of glycerol can combine with a maximum of

The phosphate-containing lipid among the following is

Saturated fatty acids characteristically contain

Unsaturated fatty acids differ from saturated fatty acids by possessing

Phospholipids contribute mainly to

Lipids generally exhibit high solubility in

Esterification of glycerol with fatty acids results in the formation of

The hydrophobic region of a phospholipid consists of

Energy stored in triglycerides exceeds carbohydrates because triglycerides contain

The principal storage form of lipids in animals consists of

During hydrolysis of a triglyceride, the products include

A phospholipid differs from a triglyceride because it contains

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